It's production in Malta made it the most expensive outdoor production in Indian cinema history.
This will be the first time that Aamir Khan and Amitabh Bachchan will be seen in a film together.
The film was edited in a theatre screen instead of computers, which is the first time in the history of Indian cinema.
This film was first offered to Hrithik Roshan & Deepika Padukone.
Amitabh Bachchan had cracked his upper-left rib, but he continued to shoot despite excruciating pain, as the film's shoot was being done on a tight schedule.